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742,000 (civilian) 1,300,000 (active duty military) 826,000 (National Guard and reserve): 2.87 million total (2016)

ANNUAL BUDGET US$530.1 billion (2010) US$549.1 billion (2011) US$553.0 billion (est. 2012) US$496.1 billion (2015) US$534.3 billion (base FY2016)

DEPARTMENT EXECUTIVES

* James Mattis , Secretary * Patrick M. Shanahan , Deputy Secretary

CHILD AGENCIES

* U.S. Department of the Army * U.S. Department of the Navy * U.S. Department of the Air Force

WEBSITE www.defense.gov

The Pentagon
The Pentagon
, headquarters of the U.S. Department of Defense

The DEPARTMENT OF DEFENSE (DOD, USDOD, or DOD) is an executive branch department of the federal government of the United States charged with coordinating and supervising all agencies and functions of the government concerned directly with national security and the United States
United States
Armed Forces . The Department is the largest employer in the world, with nearly 1.3 million active duty servicemen and women as of 2016. Adding to its employees are over 826,000 National Guardsmen and Reservists from the four services, and over 742,000 civilians bringing the total to over 2.8 million employees. It is headquartered at the Pentagon in Arlington, Virginia, just outside of Washington, D.C.

The Department of Defense is headed by the Secretary of Defense , a cabinet-level head who reports directly to the President of the United States. Beneath the Department of Defense are three subordinate military departments: the United States
United States
Department of the Army , the United States Department of the Navy , and the United States Department of the Air Force . In addition, four national intelligence services are subordinate to the Department of Defense: the Defense Intelligence Agency (DIA), the National Security Agency (NSA), the National Geospatial-Intelligence Agency (NGA), and the National Reconnaissance Office (NRO). Other Defense Agencies include the Defense Advanced Research Projects Agency
Advanced Research Projects Agency
(DARPA), the Defense Logistics Agency (DLA), the Missile Defense Agency (MDA), the Defense Health Agency (DHA), Defense Threat Reduction Agency (DTRA), the Defense Security Service (DSS), and the Pentagon Force Protection Agency (PFPA), all of which are under the command of the Secretary of Defense. Military operations are managed by nine regional or functional Unified combatant commands . The Department of Defense also operates several joint services schools, including the National Defense University (NDU) and the National War College
National War College
(NWC).

CONTENTS

* 1 History

* 1.1 The War Department * 1.2 National Military Establishment

* 2 Organizational structure

* 2.1 Office of the Secretary of Defense

* 2.1.1 Defense Agencies * 2.1.2 National Intelligence Agencies

* 2.2 Joint Chiefs of Staff * 2.3 Military Departments * 2.4 Unified Combatant Commands

* 3 Budget * 4 Energy use * 5 Freedom of Information Act processing performance * 6 Related legislation * 7 See also * 8 Notes * 9 References * 10 External links

HISTORY

See also: National Security Act of 1947 and History of the United States military

The history of the defense of the United States
United States
started with the Continental Congress in 1775 . The creation of the United States
United States
Army was enacted on 14 June 1775. This coincides with the American holiday Flag Day. The Second Continental Congress would charter the United States Navy, on 13 October 1775, and create the United States
United States
Marine Corps on 10 November 1775. Today, both the Navy and the Marine Corps are separate military services subordinate to the Department of the Navy.

THE WAR DEPARTMENT

Main article: United States Department of War

The Preamble of the United States
United States
Constitution gave the authority to the federal government to defend its citizens:

We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States
United States
of America. — Constitution of the United States
United States

Upon the seating of the first Congress on 4 March 1789, legislation to create a military defense force stagnated as they focused on other concerns relevant to setting up the new government. President George Washington went to Congress to remind them of their duty to establish a military twice during this time. Finally, on the last day of the session, 29 September 1789, Congress created the War Department , historic forerunner of the Department of Defense. 1 Stat. 95

NATIONAL MILITARY ESTABLISHMENT

President Harry Truman
Harry Truman
signs the National Security Act Amendment of 1949

After the end of World War II, President Harry Truman
Harry Truman
proposed creation of a unified department of national defense. In a special message to Congress on 19 December 1945, the President cited both wasteful military spending and inter-departmental conflicts. Deliberations in Congress went on for months focusing heavily on the role of the military in society and the threat of granting too much military power to the executive.

On 26 July 1947, Truman signed the National Security Act of 1947 , which set up a unified military command known as the "NATIONAL MILITARY ESTABLISHMENT", as well as creating the Central Intelligence Agency , the National Security Council , National Security Resources Board , United States
United States
Air Force (formerly the Army Air Forces ) and the Joint Chiefs of Staff . The act placed the National Military Establishment under the control of a single Secretary of Defense . The National Military Establishment formally began operations on 18 September, the day after the Senate confirmed James V. Forrestal as the first Secretary of Defense. The National Military Establishment was renamed the "Department of Defense" on 10 August 1949, in an amendment to the original 1947 law.

Under the Department of Defense Reorganization Act of 1958 (Pub.L. 85–899), channels of authority within the department were streamlined, while still maintaining the authority of the Military Departments. Also provided in this legislation was a centralized research authority, the Advanced Research Projects Agency
Advanced Research Projects Agency
, eventually known as DARPA . The Act moved decision-making authority from the Military Departments to the Joint Chiefs of Staff and the Secretary of Defense. It also strengthened the command channel of the military over U.S. forces from the President to the Secretary of Defense. Written and promoted by the Eisenhower administration, it was signed into law 6 August 1958.

ORGANIZATIONAL STRUCTURE

Main article: Organizational structure of the United States Department of Defense See also: List of Department of Defense agencies Department of Defense organizational chart (December 2013)

The Secretary of Defense , appointed by the President with the advice and consent of the Senate , is by federal law (10 U.S.C. § 113) the head of the Department of Defense, "the principal assistant to the President in all matters relating to Department of Defense", and has "authority, direction and control over the Department of Defense". Because the Constitution vests all military authority in Congress and the President, the statutory authority of the Secretary of Defense is derived from their constitutional authorities. Since it is impractical for either Congress or the President to participate in every piece of Department of Defense affairs, the Secretary of Defense, and the Secretary's subordinate officials generally exercise military authority.

The Department of Defense is composed of the Office of the Secretary of Defense (OSD), the Joint Chiefs of Staff (JCS) and the Joint Staff (JS), Office of the Inspector General (DODIG), the Combatant Commands , the Military Departments (Department of the Army (DA), Department of the Navy (DON) "> 2008 OSD organizational chart

The Office of the Secretary of Defense (OSD) is the Secretary and Deputy Secretary's (mainly) civilian staff.

OSD is the principal staff element of the Secretary of Defense in the exercise of policy development, planning, resource management, fiscal and program evaluation and oversight, and interface and exchange with other U.S. Government departments and agencies, foreign governments, and international organizations, through formal and informal processes. OSD also performs oversight and management of the Defense Agencies and Department of Defense Field Activities.

Defense Agencies

OSD also supervises the following Defense Agencies:

* Armed Forces Radiobiology Research Institute (AFRRI) * Department of Defense Education Activity (DoDEA) * Defense Advanced Research Projects Agency
Advanced Research Projects Agency
(DARPA) * Defense Commissary Agency (DeCA) * Defense Contract Audit Agency
Defense Contract Audit Agency
(DCAA) * Defense Contract Management Agency
Defense Contract Management Agency
(DCMA) * Defense Finance and Accounting Service (DFAS) * Defense Information Systems Agency (DISA) * Defense Legal Services Agency * Defense Logistics Agency (DLA) * Defense Security Cooperation Agency (DSCA) (formerly Defense Security Assistance Agency) * Defense Security Service (DSS) (formerly Defense Investigative Service) * Defense Technical Information Center (DTIC) * Defense Threat Reduction Agency (DTRA) * Missile Defense Agency (MDA)

National Intelligence Agencies

Several defense agencies are members of the United States Intelligence Community . These are national-level intelligence services that operate under the jurisdiction of the Department of Defense but simultaneously fall under the authorities of the Director of National Intelligence . They fulfill the requirements of national policy makers and war planners, serve as Combat Support Agencies , and also assist non-Department of Defense intelligence or law enforcement services such as the Central Intelligence Agency
Central Intelligence Agency
and the Federal Bureau of Investigation .

The military services each have their own intelligence elements which are distinct from but subject to coordination by the national intelligence agencies under the Department of Defense. Department of Defense manages the nation's coordinating authorities and assets in the disciplines of signals intelligence , geospatial intelligence , and measurement and signature intelligence and also builds, launches, and operates the Intelligence Community's satellite assets. Department of Defense also has its own human intelligence service which contributes to the CIA's human intelligence efforts while also focusing on military human intelligence priorities. These agencies are directly overseen by the Undersecretary of Defense for Intelligence .

NATIONAL INTELLIGENCE AGENCIES UNDER THE DEPARTMENT OF DEFENSE

Defense Intelligence Agency

National Security Agency

National Geospatial-Intelligence Agency

National Reconnaissance Office
National Reconnaissance Office

JOINT CHIEFS OF STAFF

Main article: Joint Chiefs of Staff Joint Chiefs of Staff/Joint Staff organizational chart.

The Joint Chiefs of Staff (JCS) is a body of senior uniformed leaders in the Department of Defense who advise the Secretary of Defense, the Homeland Security Council , the National Security Council and the President on military matters. The composition of the Joint Chiefs of Staff is defined by statute and consists of the _Chairman of the Joint Chiefs of Staff _ (_CJCS_), _Vice Chairman of the Joint Chiefs of Staff _ (_VCJCS_), _ Senior Enlisted Advisor to the Chairman _ (_SEAC_), the Military Service Chiefs from the Army , Marine Corps , Navy , and Air Force , in addition to the Chief of National Guard Bureau , all appointed by the President following Senate confirmation. Each of the individual Military Service Chiefs, outside of their Joint Chiefs of Staff obligations, works directly for the Secretary of the Military Department concerned, i.e. Secretary of the Army , Secretary of the Navy
Secretary of the Navy
, and the Secretary of the Air Force .

Following the Goldwater-Nichols Act in 1986 the Joint Chiefs of Staff do not have operational command authority, neither individually nor collectively, as the chain of command goes from the President to the Secretary of Defense, and from the Secretary of Defense to the Commanders of the Combatant Commands . Goldwater-Nichols also created the office of Vice Chairman, and the Chairman is now designated as the _principal military adviser_ to the Secretary of Defense, the Homeland Security Council, the National Security Council and to the President.

The JOINT STAFF (JS) is a headquarters staff in the Pentagon , composed of personnel from all the four services, that assists the Chairman and the Vice Chairman in discharging their responsibilities and is managed by the _Director of the Joint Staff
Joint Staff
_ (_DJS_) who is a Lieutenant General or Vice Admiral .

MILITARY DEPARTMENTS

MILITARY DEPARTMENTS OF THE DEPARTMENT OF DEFENSE

Department of the Army

Department of the Navy

Department of the Air Force

There are three Military Departments within the Department of Defense:

* the Department of the Army , which the United States
United States
Army is organized within. * the Department of the Navy , which the United States
United States
Navy and the United States
United States
Marine Corps are organized within. * the Department of the Air Force , which the United States
United States
Air Force is organized within.

The Military Departments are each headed by their own Secretary (i.e., Secretary of the Army , Secretary of the Navy
Secretary of the Navy
and Secretary of the Air Force ), appointed by the President , with the advice and consent of the Senate . They have legal authority under Title 10 of the United States
United States
Code to conduct all the affairs of their respective departments within which the military services are organized. The Secretaries of the Military Departments are (by law) subordinate to the Secretary of Defense and (by SecDef delegation) to the Deputy Secretary of Defense .

The Secretaries of the Military Departments, in turn, normally exercises authority over their forces by delegation through their respective Service Chiefs (i.e., Chief of Staff of the Army , Commandant of the Marine Corps , Chief of Naval Operations , and Chief of Staff of the Air Force ) over forces not assigned to a Combatant Command .

The Secretaries of the Military Departments and the Service Chiefs do not possess operational command authority over U.S. troops (this power was stripped from them in the Defense Reorganization Act of 1958 ), and instead the Military Departments are tasked solely with "the training, provision of equipment, and administration of troops."

UNIFIED COMBATANT COMMANDS

Map of the Department of Defense's geographic commands

A Unified Combatant Command is a military command composed of personnel and equipment from at least two Military Departments, which has a broad and continuing mission.

The Military Departments are responsible for equipping and training the troops to fight, while the Unified Combatant Commands are responsible for actual operational command of military forces. Almost all operational U.S. forces are under the authority of a Unified Command. The Unified Commands are governed by a Unified Command Plan , a frequently updated document (produced by the Department of Defense) which lays out the Command's mission, geographical/functional responsibilities, and force structure.

During military operations, the chain of command runs from the President to the Secretary of Defense to the combatant commanders of the Combatant Commands.

The United States
United States
currently has nine Combatant Commands, organized either on a geographical basis (known as "Area of Responsibility ", AOR) or on a global, functional basis:

* U.S. Northern Command (USNORTHCOM) * U.S. Southern Command (USSOUTHCOM) * U.S. Central Command (USCENTCOM) * U.S. European Command (USEUCOM) * U.S. Pacific Command (USPACOM) * U.S. Africa Command (USAFRICOM) * U.S. Strategic Command (USSTRATCOM) * U.S. Special Operations Command (USSOCOM) * U.S. Transportation Command (USTRANSCOM)

BUDGET

Chart showing growth in U.S. Department of Defense spending 2000–2011 Main article: Military budget of the United States
United States

Department of Defense spending in 2010 was 4.8% of GDP
GDP
and accounted for approximately 45% of budgeted global military spending – more than the next 17 largest militaries combined.

The Department of Defense accounts for the majority of federal discretionary spending. In FY 2010 the Department of Defense budgeted spending accounted for 21% of the U.S. Federal Budget, and 53% of federal discretionary spending , which represents funds not accounted for by pre-existing obligations. However, this does not include many military-related items that are outside of the Defense Department budget, such as nuclear weapons research, maintenance, cleanup, and production, which is in the Department of Energy budget, Veterans Affairs, the Treasury Department's payments in pensions to military retirees and widows and their families, interest on debt incurred in past wars, or State Department financing of foreign arms sales and militarily-related development assistance. Neither does it include defense spending that is not military in nature, such as the Department of Homeland Security, counter-terrorism spending by the FBI, and intelligence-gathering spending by the NSA.

In the 2010 United States
United States
federal budget , the Department of Defense was allocated a base budget of $533.7 billion, with a further $75.5 billion adjustment in respect of 2009, and $130 billion for overseas contingencies. The subsequent 2010 Department of Defense Financial Report shows the total budgetary resources for fiscal year 2010 were $1.2 trillion. Of these resources, $1.1 trillion were obligated and $994 billion were disbursed, with the remaining resources relating to multi-year modernization projects requiring additional time to procure. After over a decade of non-compliance , Congress has established a deadline of Fiscal year 2017 for the Department of Defense to achieve audit readiness .

In 2015 the allocation for the Department of Defense was $585 billion, the highest level of budgetary resources among all Federal agencies, and this amounts to more than one-half of the annual Federal Expenditures in the United States
United States
federal budget discretionary budget .

ENERGY USE

Main article: Energy usage of the United States
United States
military

The Department of Defense was the largest single consumer of energy in the United States
United States
in 2006.

In FY 2006, the Department used almost 30,000 gigawatt hours (GWH) of electricity, at a cost of almost $2.2 billion. The Department's electricity use would supply enough electricity to power more than 2.6 million average American homes. In electricity consumption, if it were a country, the Department would rank 58th in the world, using slightly less than Denmark
Denmark
and slightly more than Syria
Syria
(CIA World Factbook, 2006).

The Department of Defense is responsible for 93% of all US government fuel consumption in 2007 (Department of the Air Force : 52%; Department of the Navy : 33%; Department of the Army : 7%; other Department components: 1%). The Department of Defense uses 4,600,000,000 US gallons (1.7×1010 L) of fuel annually, an average of 12,600,000 US gallons (48,000,000 L) of fuel per day. A large Army division may use about 6,000 US gallons (23,000 L) per day. According to the 2005 _ CIA World Factbook _, if it were a country, the Department of Defense would rank 34th in the world in average daily oil use, coming in just behind Iraq
Iraq
and just ahead of Sweden
Sweden
. The Air Force is the largest user of fuel energy in the federal government . The Air Force uses 10% of the nation's aviation fuel. ( JP-8 accounts for nearly 90% of its fuels.) This fuel usage breaks down as such: 82% jet fuel, 16% facility management and 2% ground vehicle/equipment.

FREEDOM OF INFORMATION ACT PROCESSING PERFORMANCE

In the latest Center for Effective Government analysis of 15 federal agencies which receive the most Freedom of Information Act (United States) (FOIA) requests, published in 2015 (using 2012 and 2013 data, the most recent years available), the DoD earned a D− by scoring 61 out of a possible 100 points, i.e. did not earn a satisfactory overall grade. While it had improved from a failing grade in 2013, it still had low scores in processing requests (55%) and their disclosure rules (42%).

RELATED LEGISLATION

The organization and functions of the Department of Defense are in Title 10 of the United States
United States
Code .

Other significant legislation related to the Department of Defense includes:

* 1947: National Security Act of 1947 * 1958: Department of Defense Reorganization Act, Pub.L. 85–899 (see note in history section above) * 1963: Department of Defense Appropriations Act , Pub.L. 88–149 * 1963: Military Construction Authorization Act, Pub.L. 88–174 * 1967: Supplemental Defense Appropriations Act , Pub.L. 90–8 * 1984: Department of Defense Authorization Act, Pub.L. 98–525 * 1986: Goldwater-Nichols Act of 1986 (Department of Defense Reorganization Act), Pub.L. 99–433 * 1996: Antiterrorism and Effective Death Penalty Act , Pub.L. 104–132

SEE ALSO

* Government of the United States
United States
portal * Military history portal

* Arms industry * List of United States
United States
military bases * Military–industrial complex * Nuclear weapons * Private military company * Title 32 of the Code of Federal Regulations * United States
United States
Department of Homeland Security * United States
United States
Department of Justice * United States
United States
Department of Veterans Affairs * Warrior Games

NOTES

* ^ soldiers, marines, sailors, airmen * ^ Army, Marine Corps, Navy, and Air Force

REFERENCES

* ^ _A_ _B_ "About Department of Defense". U.S. Department of Defense. Retrieved July 17, 2017. * ^ "Budget of the US Government, FY 2011" (PDF). Archived from the original (PDF) on 17 February 2011. Retrieved 15 October 2010. * ^ "Defense.gov" (PDF). Archived from the original (PDF) on 17 February 2011. * ^ _A_ _B_ " United States
United States
Department of Defense Fiscal Year 2016 Budget Request / Overview" (PDF). Office of the Under Secretary of Defense (Comptroller) Chief Financial Officer. February 2015. Retrieved 20 August 2015. * ^ "Manual for Written Material" (PDF). Department of Defense. p. 9. Archived from the original (PDF) on 29 August 2004. Retrieved 10 December 2014. * ^ "The World\'s Biggest Employers". _Forbes.com_. Forbes. Retrieved 31 July 2015. * ^ "Department of Defense (DoD) Releases Fiscal Year 2017 President\'s Budget Proposal". U.S. Department of Defense. 9 February 2016. Retrieved 11 February 2016. * ^ Maass, John R. (14 June 2012). "June 14th: The Birthday of the U.S. Army". U.S. Army Center of Military History. Retrieved 19 June 2014. * ^ Naval History and Heritage Command. "Navy Birthday Information – 13 October 1775". Retrieved 19 June 2014. * ^ "Marine Corps: Timeline". United States
United States
Marine Corps. Retrieved 19 June 2014. * ^ "Congress Officially Created the U.S. Military: September 29, 1789". Library of Congress. Retrieved 20 June 2014. * ^ Hogan, Michael J. (2000). _A cross of iron: Harry S. Truman and the origins of the national security state, 1945–1954_. Cambridge University Press. pp. 37–38. ISBN 978-0-521-79537-1 . * ^ Polmar, Norman (2005). _The Naval Institute guide to the ships and aircraft of the U.S. fleet_. Naval Institute Press. p. 17. ISBN 978-1-59114-685-8 . * ^ _A_ _B_ "James V. Forrestal, Harry S. Truman Administration". _Historical Office, Office of the Secretary of Defense_. Office of the Secretary of Defense. Retrieved 25 July 2017. * ^ Bolton, M. Kent (2008). _U.S. national security and foreign policymaking after 9/11: present at the re-creation_. Rowman & Littlefield. p. 3. ISBN 978-0-7425-5900-4 . * ^ Rearden, Steven L. (2001). "Department of Defense". In DeConde, Alexander et al. _Encyclopedia of American Foreign Policy, Volume 1_. Simon and Schuster. ISBN 978-0-684-80657-0 . CS1 maint: Uses editors parameter (link ) * ^ "Organizational and Management Planning". Odam.defense.gov. Retrieved 2013-06-15. * ^ Department of Defense Directive 5100.01 * ^ 10 USC 151. Joint Chiefs of Staff: composition; functions * ^ 10 U.S.C. § 3033 Archived 12 March 2013 at the Wayback Machine . * ^ 10 U.S.C. § 5033 Archived 12 March 2013 at the Wayback Machine . * ^ 10 U.S.C. § 5043 Archived 12 March 2013 at the Wayback Machine . * ^ 10 U.S.C. § 8033 Archived 12 March 2013 at the Wayback Machine . * ^ 10 U.S.C. § 162(b) Archived 29 May 2013 at the Wayback Machine . * ^ 10 U.S.C § 151(b) Archived 12 March 2013 at the Wayback Machine . * ^ 10 U.S.C § 155 Archived 12 March 2013 at the Wayback Machine . * ^ Polmar, Norman (2005). "Defense organization". _The Naval Institute guide to the ships and aircraft of the U.S. fleet_. Naval Institute Press. ISBN 978-1-59114-685-8 . * ^ 10 U.S.C. § 3013, 10 U.S.C. § 5013 and 10 U.S.C. § 8013 * ^ _A_ _B_ _C_ _D_ Polmar, Norman (2005). "Defense Organization". _The Naval Institute guide to the ships and aircraft of the U.S. fleet_. Naval Institute Press. p. 20. ISBN 978-1-59114-685-8 . * ^ Watson, Cynthia A. (2010). _Combatant Commands: Origins, Structure, and Engagements_. ABC-CLIO. p. 3. ISBN 978-0-313-35432-8 . * ^ _A_ _B_ _C_ Whitley, Joe D.; et al., eds. (2009). "Unified Combatant Commands and USNORTHCOM". _Homeland security: legal and policy issues_. American Bar Association. ISBN 978-1-60442-462-1 . * ^ Reveron, Derek S. (2007). _America\'s Viceroys: The Military and U.S. Foreign Policy_. Macmillan. p. 26. ISBN 978-0-230-60219-9 . * ^ "Military Spending: Defence Costs". _The Economist_. 8 June 2011. * ^ "The SIPRI Military Expenditure Database". Stockholm International Peace Research Institute . Archived from the original on 28 March 2010. Retrieved 13 December 2011. * ^ " United States
United States
Federal Budget for Fiscal Year 2010" (PDF). Government Printing Office . Archived from the original (PDF) on 5 February 2011. Retrieved 9 January 2010. * ^ " United States
United States
Federal Budget for Fiscal Year 2010 (_vid._ p.53)" (PDF). Government Printing Office . Archived from the original (PDF) on 5 February 2011. Retrieved 9 January 2010. * ^ _A_ _B_ "FY 2010 DoD Agencywide Agency Financial Report (_vid._ p.25)" (PDF). US Department of Defense. Retrieved 7 January 2011. * ^ "Financial Improvement and Audit Readiness (FIAR) Plan Status Report" (PDF). Comptroller, Department of Defense . Retrieved 16 September 2016. * ^ "Current & Future Defense Capabilities of the U.S.". _UTEP_. Retrieved 18 August 2015. * ^ "Federal Spending: Where Does the Money Go". _National Priorities Project_. Retrieved 18 August 2015. * ^ Andrews Anthony (2011). _Department of Defense Facilities: Energy Conservation Policies and Spending_. DIANE Publishing. p. 1. ISBN 978-1-4379-3835-7 . * ^ _A_ _B_ Colonel Gregory J. Lengyel, USAF, The Brookings Institution, Department of Defense Energy Strategy, August 2007. * ^ Colonel Gregory J. Lengyel, USAF, The Brookings Institution , Department of Defense Energy Strategy, August 2007, "Archived copy" (PDF). Archived from the original (PDF) on 26 July 2010. Retrieved 12 September 2009. * ^ Powering America’s Defense: Energy and the Risks to National Security, CNA Analysis ;background:none transparent;border:none;-moz-box-shadow:none;-webkit-box-shadow:none;box-shadow:none;">v

* t * e

United States
United States
Department of Defense

* Headquarters: THE PENTAGON

* James Mattis , Secretary of Defense * Patrick M. Shanahan , Deputy Secretary of Defense

Office of the Secretary of Defense (including Defense Agencies and DoD Field Activities)

DEPUTY SECRETARY OF DEFENSE

* Deputy\'s Advisory Working Group * Office of Net Assessment * Special
Special
Access Program Oversight Committee

Under Secretary of Defense for Acquisition, Technology and Logistics

* Director, Defense Research and Engineering * Defense Advanced Research Projects Agency
Advanced Research Projects Agency
* Missile Defense Agency * Defense Contract Management Agency
Defense Contract Management Agency
* Defense Logistics Agency * Defense Technical Information Center * Defense Threat Reduction Agency * Office of Economic Adjustment * Defense Acquisition University
Defense Acquisition University
* Defense Acquisition Board

UNDER SECRETARY OF DEFENSE FOR POLICY

* Defense Security Cooperation Agency * Defense POW/MIA Accounting Agency * Defense Policy Board Advisory Committee

UNDER SECRETARY OF DEFENSE (COMPTROLLER)

* Defense Contract Audit Agency
Defense Contract Audit Agency
* Defense Finance and Accounting Service

Under Secretary of Defense for Personnel and Readiness

* Defense Commissary Agency * Department of Defense Education Activity * DoD Human Resources Activity * Military Health System * Uniformed Services University of the Health Sciences * Defense Equal Opportunity Management Institute

Under Secretary of Defense for Intelligence

* Defense Intelligence Agency * Defense Security Service * Defense Information Systems Agency * National Geospatial-Intelligence Agency * National Reconnaissance Office
National Reconnaissance Office
* National Security Agency (Director )

ASSISTANT SECRETARY OF DEFENSE FOR PUBLIC AFFAIRS

* Defense Media Activity ( American Forces Press Service , American Forces Radio and Television Service , Stars and Stripes , The Pentagon Channel )

GENERAL COUNSEL OF THE DEPARTMENT OF DEFENSE

* Defense Legal Services Agency

DIRECTOR OF ADMINISTRATION AND MANAGEMENT

* Pentagon Force Protection Agency * Washington Headquarters Services

MILITARY DEPARTMENTS

DEPARTMENT OF THE ARMY

* SECRETARY OF THE ARMY The Secretariat : Under Secretary of the Army * Assistant Secretary for Acquisition, Logistics, and Technology * Assistant Secretary for Civil Works * Assistant Secretary (Financial Management and Comptroller) * Assistant Secretary of the Army for Installations, Energy and Environment * Assistant Secretary of the Army for Manpower and Reserve Affairs * General Counsel of the Army

* The Administrative Assistant The Army Staff: Chief of Staff of the Army * Vice Chief of Staff of the Army * Sergeant Major of the Army * Deputy Chief of Staff G-8 * Chief of Chaplains * Judge Advocate General * Provost Marshal General

* Surgeon General U.S. Army field organizations: see _Structure of the United States Army _

DEPARTMENT OF THE NAVY

* SECRETARY OF THE NAVY The Secretariat : Under Secretary of the Navy
Secretary of the Navy
* Assistant Secretary of the Navy (Financial Management and Comptroller) * Assistant Secretary of the Navy
Secretary of the Navy
(Installations and Environment) * Assistant Secretary of the Navy
Secretary of the Navy
(Manpower and Reserve Affairs) * Assistant Secretary of the Navy
Secretary of the Navy
(Research, Development and Acquisitions) * General Counsel of the Navy * Judge Advocate General * Naval Criminal Investigative Service

* Naval Inspector General Headquarters Marine Corps : Commandant of the Marine Corps * Assistant Commandant of the Marine Corps * Sergeant Major of the Marine Corps

* Chaplain U.S. Marine Corps field organizations: see _Organization of the United States
United States
Marine Corps _ Office of the Chief of Naval Operations : Chief of Naval Operations * Vice Chief of Naval Operations * Master Chief Petty Officer of the Navy * Director of Naval Reactors * Chief of Chaplains * Chief of Naval Personnel

* Surgeon General United States
United States
Navy field organizations: see _Structure of the United States Navy _

DEPARTMENT OF THE AIR FORCE

* SECRETARY OF THE AIR FORCE The Secretariat : Under Secretary of the Air Force * Assistant Secretary of the Air Force (Acquisition) * Assistant Secretary of the Air Force (Financial Management & Comptroller) * Assistant Secretary of the Air Force (Installations, Environment & Logistics) * Assistant Secretary of the Air Force (Manpower padding:0px">

JOINT CHIEFS OF STAFF

* CHAIRMAN OF THE JOINT CHIEFS OF STAFF Vice Chairman of the Joint Chiefs of Staff * Senior Enlisted Advisor to the Chairman * Joint Requirements Oversight Council * Director of the Joint Staff
Joint Staff
* Joint Staff
Joint Staff
* National Military Command Center * Alternate National Military Command Center * National Defense University
National Defense University

COMBATANT COMMANDS

* Africa Command * Central Command * European Command * Northern Command * Pacific Command * Southern Command * Special
Special
Operations Command (Joint Special
Special
Operations Command ) * Strategic Command (Cyber Command ) * Transportation Command

NATIONAL GUARD BUREAU

* Chief of the National Guard Bureau * Air National Guard
Air National Guard
* Army National Guard
Army National Guard

OFFICE OF THE INSPECTOR GENERAL

* Defense Criminal Investigative Service

* v * t * e

United States
United States
Armed Forces

* _ Book
Book

* Portal
Portal

* A * MC * N * AF * CG

* Category
Category

* A * MC * N * AF * CG * PHS * NOAA

* Navbox

* A * MC * N * AF * CG

LEADERSHIP

* Commander-in-chief : President of the United States
United States
* Secretary of Defense * Deputy Secretary of Defense

* Joint Chiefs of Staff :

* Chairman * Vice Chairman

* United States
United States
Congress : Committees on Armed Services:

* Senate * House

* Active duty four-star officers * Highest ranking officers in history * National Security Act of 1947 * Goldwater–Nichols Act

ORGANIZATION

SERVICE DEPARTMENTS

* Department of Defense (Secretary )_: Army (Secretary ) * Navy (Secretary ) * Air Force (Secretary ) * _Department of Homeland Security (Secretary )_: Coast Guard

BRANCHES

* Army (Chief of Staff ) * Marine Corps (Commandant ) * Navy ( Chief of Naval Operations ) * Air Force (Chief of Staff ) * Coast Guard (Commandant )

OTHER UNIFORMED SERVICES

* Public Health Service Commissioned Corps (Surgeon General ) * National Oceeanic and Atmospheric Administration Commissioned Officer Corps (Director )

RESERVE COMPONENTS

* Reserves:

* A * MC * N * AF * CG

* National Guard :

* A * AF

* Naval militias

CIVILIAN AUXILIARIES

* Military Auxiliary Radio System * Merchant Marine * Civil Air Patrol
Civil Air Patrol
* Coast Guard Auxiliary

UNIFIED COMBATANT COMMAND

* Northern * Central * European * Pacific * Southern * Africa * Special
Special
Operations * Strategic * Transportation

STRUCTURE

* United States
United States
Code

* Title 10 * Title 14 * Title 32 * Title 50

* The Pentagon
The Pentagon
* Installations

* Units:

* A * MC * N * AF * CG

* Logistics * Media * Unit mottoes

OPERATIONS AND HISTORY

* Current deployments * Conflicts * Wars * Timeline

* History :

* A * MC * N * AF * CG

* Colonial * World War II * Civil affairs * African Americans * Asian Americans * Buddhist Americans * Jewish Americans * Muslim Americans * Pakistani Americans * Sikh Americans

* Historiography:

* A: 1 /2 * MC * N * AF

* Art :

* A * AF

PERSONNEL

TRAINING

* MEPS * ASVAB

* Recruit training :

* A * MC * N * AF * CG

* Officer candidate school :

* A * MC * N * AF

* Warrant :

* A * MC

* Service academies :

* A (prep ) * N (prep ) * AF (prep ) * CG * Merchant Marine

* ROTC /JROTC :MJC /SMC

* A * MC/N * AF

* Medical * Other education

UNIFORMS

* Uniforms :

* A * MC * N * AF * CG

* Awards border-left-width:2px;border-left-style:solid;width:100%;padding:0px">

* Enlisted:

* A * MC * N * AF * CG

* Warrant officers

* Officer:

* A * MC * N * AF * CG * PHS * NOAA

OTHER

* Oath:

* Enlistment * Office

* Creeds border-left-width:2px;border-left-style:solid;width:100%;padding:0px">

* A

* MC:

* vehicles * weapons * other

* N * AF * CG

LAND

* Individual weapons * Crew-served weapons * Vehicles (active )

SEA

* All watercraft

* Ships:

* A * N (active ) * AF * CG * MSC * NOAA

* Weapons:

* N * CG

* Aircraft:

* N * CG * NOAA

* Reactors

AIR

* Aircraft

* World War I * active

* Aircraft designation * Missiles * Helicopter arms

OTHER

* Nuclear football * Electronics (designations )

* Flags :

* A * MC * N * AF * CG * Ensign * Jack * Guidons

* Food

* WMDs :

* Nuclear * Biological * Chemical

Legend A = Army MC = Marine Corps N = Navy AF = Air Force CG = Coast Guard PHS = Public Health Service NOAA = National Oceanic and Atmospheric Administration

* v * t * e

United States
United States
Intelligence Community

Intelligence Community

DEFENSE

* Defense Intelligence Agency ( Defense Clandestine Service Defense Attaché System National Intelligence University
National Intelligence University
Missile and Space Intelligence Center • National Center for Medical Intelligence • Joint Functional Component Command for Intelligence, Surveillance and Reconnaissance ) * National Geospatial-Intelligence Agency * National Reconnaissance Office
National Reconnaissance Office
* National Security Agency ( Central Security Service , Special Collection Service )

ARMED FORCES

* Army Intelligence and Security Command * Marine Corps Intelligence * Office of Naval Intelligence * Twenty-Fifth Air Force * Coast Guard Intelligence (_Homeland Security_)

CIVILIAN

* Bureau of Intelligence and Research (_State_ ) * Central Intelligence Agency
Central Intelligence Agency
(Directorate of Operations • Special Activities Division • Open Source Center • Directorate of Science and Technology • CIA University ) * Drug Enforcement Administration (_Justice_ ) * Federal Bureau of Investigation (_Justice_) * Office of Intelligence and Analysis (_Homeland Security_ ) * Office of Terrorism and Financial Intelligence
Office of Terrorism and Financial Intelligence
(_Treasury_ ) * Office of Intelligence and Counterintelligence (_Energy_ )

Director of National Intelligence

* Director of National Intelligence * National Counterterrorism Center * National Counterproliferation Center * Office of the National Counterintelligence Executive * National Intelligence Council * Intelligence Advanced Research Projects Activity * Joint Intelligence Community Council * Chief Information Officer

Executive Office of the President

* National Security Advisor * National Security Council * President\'s Intelligence Advisory Board * Homeland Security Council * Homeland Security Advisor * President\'s Daily Brief

OTHER

* Under Secretary of Defense for Intelligence * Army Intelligence Support Activity * Joint Worldwide Intelligence Communications System * Intellipedia

OVERSIGHT

* United States
United States
Senate Select Committee on Intelligence * United States
United States
House Permanent Select Committee on Intelligence * United States
United States
Foreign Intelligence Surveillance Court

DEFUNCT

* Contingency Fund for Foreign Intercourse * Counterintelligence Field Activity * Military Information Division * Military Intelligence Division * Military Intelligence Service * Office of Strategic Services * Office of Special
Special
Plans * Strategic Support Branch

* v * t * e

Federal executive departments of the United States
United States
of America

Executive Departments

* Agriculture * Commerce * Defense * Education * Energy * Health and Human Services * Homeland Security * Housing and Urban Development * Interior * Justice * Labor * State * Transportation * Treasury * Veterans Affairs

FORMER

* Air Force * Army * Commerce and Labor * Health, Education, and Welfare * Navy * Post Office * War

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